> There might be a bare minimum amount of CO2 allowed, it's fixed.
I'm not sure I understand, are you suggesting an individual "carbon-quota" as a more radical way of slashing emissions than the "incentives" of a carbon tax? Depending on the tax rate, a carbon tax could produce reasonably expeditious results.
Yes, I was unclear, sorry. What I mean is: "There might physically be an amount of CO2 that can be released without compromising our ecosystem. That amount is fixed. We can't borrow on it and repay it later."
